I also want to add I was able to find it stamped on the block near the oil fill tube which is on the muffler side of the engine. It was very hard to see. No mention of this on the B&S website under the topic of where to find your model number. They actually have a video directing you to the area between the valve cover and the Carb. That is where the QR code is located and the Serial Number is clearly given. They tell you to read the QR code with your cell phone to get the model number. I find this a lame attempt to collect your contact info.